Portable display device, method of controlling portable display device, program, and recording medium

Abstract

Provided is a portable display device sufficiently small to be held with one hand that enters a state for accepting a gesture when a fixed coordinate position near a central portion between a left display unit (14a) and a right display unit (14b) is pressed with a thumb Ftl of one hand holding the device, and accepts a command for performing such as page flipping processing based on a gesture inputted with an index finger Ffr of the other hand. Thus, it is possible to achieve an interface for input operations suitable for a two-screen display screen, where holding a two-screen portable display device naturally causes the device to enter a command accepting state to allow gesture recognition, and to enter a command non-accepting state when the portable display device is not held, in order to prevent a command from being falsely executed due to an unintended contact and such to the display screen.

Description

REFERENCE TO RELATED APPLICATIONS[0001]This application is a national stage application under 35 USC 371 of International Application No. PCT / JP2010 / 054808, filed Mar. 19, 2010, which claims the priority of Japanese Application No. JP2009-177320, filed Jul. 30, 2009, the contents of which prior applications are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to portable display devices, and in particular to a portable display device having a two-screen display unit and a touch panel capable of detecting coordinates on the display unit that are subjected to approach, contact, or press.BACKGROUND OF THE INVENTION[0003]In recent years, an increasing number of portable display devices requiring operations such as menu selection are provided with a touch panel with which an operation such as selection of a desired menu is accepted by pressing the panel using a stylus pen or a finger according to the display in the screen. Such portable display d...

AI Technical Summary

Benefits of technology

[0058]According to the eighth aspect of the present invention, when the two or more related coordinates represent a changing form in which the two or more related coordinates move from a portion near one side to a portion near another side out of four outer sides of at least one square display window in the two screens, a predetermined window form changing command corresponding to the changing form is recognized and executed. Therefore, it is possible to easily change the number or the form of divisions of the window by a simple and intuitive gesture.

[0059]According to the ninth aspect of the present invention, the gesture recognizing unit enters: a non-accepting state in which recognition and execution of the processing command are unallowed when the coordinates obtained by the input unit do not include a predetermined number of fixed coordinates out of the plurality of fixed coordinates, and an accepting state in which recognition of the processing command is allowed when the coordinates obtained by the input unit include the predetermined number of fixed coordinates. Therefore, it is possible to prevent the false detection from occurring as compared to the determination based on a single coordinate.

[0060]According to the tenth aspect of the present invention, during a time period in the non-accepting state, the input unit performs at least one of an operation of limiting a range of coordinates to be obtained on the display unit to the fixed coordinate or near the fixed coordinate, and an operation of setting a time interval at which the coordinates are to be obtained to be long, thereby obtaining the coordinates. Therefore, an operation, a signal and the like that are used to obtain a coordinate within a range other than the fixed coordinate can be eliminated and the number of times the coordinate per unit time is obtained can be reduced. Thus, it is possible to reduce power consumption during the non-accepting state.

[0061]According to the eleventh aspect of the present invention, it is possible to provide the same effect as that of the first aspect according to the present invention for a method of controlling a portable display device.

[0062]According to the twelfth aspect of the present invention, it is possible to provide the same effect as that of the first aspect according to the present invention for a program for a portable display device.

[0063]According to the thirteenth aspect of the present invention, it is possible to provide the same effect as that of the first aspect according to the present invention for a computer-readable non-transitory recording medium having a program for a portable display device recorded therein.

Problems solved by technology

However, in a case of a portable display device that is used with one hand, such as a mobile telephone terminal or a PDA (Personal Digital Assistant) device, it is not necessarily suitable for such a device to be operated through a virtual keyboard or a virtual mouse.

Further, in a case of a device or application software (also referred to as an electronic book) that is intended to use both of the two screens as a display screen, such as a device or application software for presenting an electronic document in a two-page center spread manner like a printed book, displaying the virtual keyboard or the virtual mouse on the display screen interferes the view, and therefore a method for more suitably accepting an input operation is required.

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